Mahabharata 12.338.21

ब्रह्मोवाचवैजयन्तो गिरिवरः सततं सेव्यते मयाअत्रैकाग्रेण मनसा पुरुषश्चिन्त्यते विराट्

brahmovācavaijayanto girivaraḥ satataṃ sevyate mayāatraikāgreṇa manasā puruṣaścintyate virāṭ

Our plain-language meaning of this verse is waiting for scholar review.